Gold nanoparticle-mediated detection of melamine based on a dual colorimetric and turbidometric readouts

Na Li, Fang Wei, Robert Lam, Jiaqi Zou, Stacy Cheng, Steven Lu, Dean Ho

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

A simple method for rapid detection of melamine in the food is presented. Citrate-coated gold nanoparticles (AuNPs) and cyanuric acid were utilized to generate melamine-concentration dependent colorimetric and turbidometric signals, respectively. As low as 0.4 ppm of melamine can be detected from the whole milk within 15 minutes with this new detection method and a simple acid precipitation based milk pretreatment. This melamine detection method provides a time- and cost- effective alternative to conventional methods.

Original languageEnglish (US)
Title of host publication2010 10th IEEE Conference on Nanotechnology, NANO 2010
Pages736-739
Number of pages4
DOIs
StatePublished - 2010
Event2010 10th IEEE Conference on Nanotechnology, NANO 2010 - Ilsan, Gyeonggi-Do, Korea, Republic of
Duration: Aug 17 2010Aug 20 2010

Publication series

Name2010 10th IEEE Conference on Nanotechnology, NANO 2010

Other

Other2010 10th IEEE Conference on Nanotechnology, NANO 2010
CountryKorea, Republic of
CityIlsan, Gyeonggi-Do
Period8/17/108/20/10

Keywords

  • Cyanuric acid
  • Gold nanoparticles
  • Melamine

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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